Reference Radiographs for Heavy Aluminum Castings.
ARMY TANK-AUTOMOTIVE RESEARCH AND DEVELOPMENT COMMAND WARREN MICH
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Two sets of standard reference radiographs were made from aluminum sand castings containing various types and degrees of internal flaws for use in controlling quality of aluminum castings 1 to 3 inches thick. The two sets were developed from master standards covering the thickness ranges 1 to 2 inches and 2 to 3 inches. Each set contains five grades of flaws commonly experienced in aluminum castings. Author
- Metallurgy and Metallography